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Finding the Third Proportional to 9,988 and 15,566

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Solution

The third proportional to 9,988 and 15,566 is: 24,259.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988 : 15,566 = 15,566 : x
  2. Step 2: Convert to fraction form
    9,988/15,566 = 15,566/x
  3. Step 3: Cross multiply
    9,988x = 15,566 × 15,566
  4. Step 4: Simplify right side
    9,988x = 242,300,356
  5. Step 5: Solve for x
    x = 242,300,356/9,988
  6. Step 6: Final answer
    x = 24,259.15

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.